/*

	Image Unit
	Copyrught 2007 Wimbomedia.com

*/

var imageUnit = {

	showCap : function(container)
	{
		var caption = container.getElementsByTagName("div")[0];
		caption.className = "caption";
	},

	hideCap : function(container)
	{
		var caption = container.getElementsByTagName("div")[0];
		caption.className = "caption_hidden";
	},

	scaleImage : function(image)
	{
		var w = image.width;
		var h = image.height;

		var scaleW = image.parentNode.style.width;
		var scaleH = image.parentNode.style.height;

		scaleW = scaleW.substring(0, scaleW.lastIndexOf("px"));
		scaleH = scaleH.substring(0, scaleH.lastIndexOf("px"));

		if(w > 0)
		{
			var wDiff = scaleW/w;
			var hDiff = scaleH/h;
		}

		var scale = (wDiff < hDiff) ? hDiff : wDiff;

		var width = w*scale;
		var height = h*scale;

		image.width = width;
		image.height = height;
	}

}